Class InformationNumber: 312/285Name:Supports: cabinet structure > Accessible from plural sides > PerimetricallyDescription: Structures which are accessible (1) from all vertical sides, (2) from the entire perimeter, or (3) from less than all vertical sides, or the entire perimeter, provided that the directions from which the structures are accessible are at least equivalent either to the three directions from which a structure, triangular in cross-section, would be accessible under (1), or to the four directions from which a structure, rectangular in cross-section, would be accessible under (1).